I'd Love to Know if this Study Mentions Spanking

Um, if you click through to the actual survey itself (found at http://www.businessinsider.com/which-sexual-fantasies-are-normal-2014-10 ) and click to enlarge the image then you'll see:
I have fantasized about spanking or whipping someone to obtain sexual pleasure 23.8 43.5
I have fantasized about being spanked or whipped to obtain sexual pleasure 36.3 28.5

with the first number being for female responses and the second for males.

So yes, it was covered, answered, and it seems to be a common fantasy.

Good catch, and the numbers are higher that I would have expected. The male/female proportions are unsurprising though.

Sill, some of the practices on the list, like masturbation, are so common that I seriously wonder why the results aren't 100%.

I love the term "scientifically normal". Only a non-scientist could accurately define that one.